One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,6)(3,5,7,8)(9,10)(11,15)(12,13)(14,16)(17,18,22,23)(19,24,21,20)(25,26,29,28)(27,30,31,32)(9,10)(11,15)(12,13)(14,16)(17,19,22,21)(18,20,23,24)(27,31)(30,32)(10,13)(14,15)(17,20,22,24)(18,19,23,21)(25,27)(26,30)(28,32)(29,31)(1,2)(3,5)(4,6)(7,8)(9,10)(11,14)(12,13)(15,16)(17,18)(19,20)(21,24)(22,23) involution — undirected(1,3,4,7)(2,5,6,8)(9,11,12,16)(10,14,13,15)(17,21,22,19)(18,20,23,24)(25,28,29,26)(27,32,31,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.